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Jerry Newton
Jerry Newton, GMC Technician
Category: GM
Satisfied Customers: 4508
Experience:  ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
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GM yukon xl: 2004 yukon reduced engine power it

Customer Question

2004 yukon reduced engine power it most likely the throttle or pedal position sensor?
Submitted: 2 years ago.
Category: GM
Expert:  Jerry Newton replied 2 years ago.
There are different codes that mean different things, and I'd want to know the codes before buying any parts. However, to directly answer your question: we replace a lot more throttle bodies than APP sensors. Probably about 20:1 ratio. If I had to take an educated guess, I would go with throttle body.